oua.c:4: warning: built-in function `cos' declared as non-function oua.c: In function `main': oua.c:20: warning: int format, different type arg (arg 3) oua.c:20: warning: int format, different type arg (arg 4) oua.c:51: warning: array subscript has type `char' oua.c:51: warning: array subscript has type `char' oua.c:52: warning: array subscript has type `char' oua.c:52: warning: array subscript has type `char' oua.c:53: warning: array subscript has type `char' oua.c:53: warning: array subscript has type `char' oua.c:62: warning: array subscript has type `char' oua.c:62: warning: array subscript has type `char' oua.c:63: warning: array subscript has type `char' oua.c:64: warning: array subscript has type `char' oua.c:65: warning: array subscript has type `char' oua.c:65: warning: array subscript has type `char'